Cis-fused compounds of the formula I
wherein R is methoxy or ethoxy, when R is methoxy, R¹ is methyl and R² and R³ are both hydrogen or both methyl, and when R is ethoxy, R¹ is hydrogen and R² and R³ are both methyl, and enantiomers and salts thereof are new and useful as antioxidants, within the medical and non-medical field.
式I的顺式融合化合物,其中R为甲氧基或乙氧基,当R为甲氧基时,R¹为甲基,R²和R³均为氢或均为甲基,当R为乙氧基时,R¹为氢,R²和R³均为甲基,其对映异构体和盐在医学和非医学领域中作为
抗氧化剂是新的且有用的。